hii all,
Im doing a research about search engines.if any body knows how it works pls reply this thread.
I found some details but don't know whether correct.
Also i would like to know is there any difference between the mechanism of search engines?

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first it searches the all web pages based on the key words we have given and takes in to a database.
then take entire page and linked page which consists key word.

then Check the importance by checking how frequently key word appears on web page,because it needs to organize the result as a most related
link to least related link.
keep the index of the pages and where they find (links)them.
then produce the results according to the importance .